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Power Systems

Power Systems
Proximity effect is more in case of

None of these
 same in both cases
 over head lines
 power cables

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Power Systems
The power station that does not requier any moving part is

 Tidal power generation.
  Thermonic convertor.
 Solar power generation.
 Wind power generation.

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Power Systems
In which of the following frequency control method tie line may be overloaded?

 flat tie line control
All of these
 parallel frequency
 flat frequency control

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Power Systems
Earth fault relay uses the which of the following sequence currents?

 positive sequence
 negative sequence
 any of the above
 zero sequence

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Power Systems
Find the propagation constant, if impedance is 10Ω and admittance is 10 â„§?

 5
 10
 100
 1

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Power Systems
When is the ferranti effect on long overhead lines experienced?

 The power factor is unity
 The line is heavily loaded
 The line is lightly loaded
 The line is fully loaded

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